Planetary Data System
Engineering Node

PDS3 Standards: Individual Issue

SCR 3-1127: Pointer/Object Ambiguity in the Standards Reference

Priority: high


Problem Summary: As labels become more complicated, we frequently encounter the case of multiple objects of the same basic type (IMAGE or TABLE, e.g.) being described in the same label. By convention we at SBN have always used unique identifiers for objects of similar type, which we formulate by prepending a descriptive modifier to the base type (as is done in the occasional SR example). Recent interaction with the Rosetta mission, however, has pointed out two major logical holes in the PDS label (and possibly ODL) standards: 1. I can find no requirement in the SR that object identifiers be unique within an ODL file. 2. I can find no statement in the SR that object identifiers in PDS labels must end, or even contain, the base object type. Similarly, there is not statement in the SR that requires that pointers and object with the same name should be mapped to each other based on their sequence in the file.


Working group: R. Joyner (lead) M. Cayanan, L. Huber, S. Hughes, T. King, A. Raugh

Originator: Anne Raugh


Standards Change Request:

Version Date Author(s) Format Note
1 2008-05-07 Todd King DOC
PDF
2 2008-05-07 Todd King DOC
PDF
3 2008-05-07 Todd King DOC
DOC With changes highlighted.
PDF
4 2008-05-07 Todd King DOC
DOC With changes highlighted.
PDF
5 2009-03-25 Todd King DOC
PDF
6 2009-06-30 A. Raugh et al. DOC no markup
DOC with markup
PDF no markup
PDF with markup
7 2009-07-15 E. Rye DOC
PDF

Discussion:


Supplementary Material:


Status:

Status Task ResponsibleParty Response
SUBMITTED 2007-07-31 Submit issue. ORIG Issue submitted through online interface 07/31/07.
Form working group. EN-SEORIG E. Rye sent email to S. Hardman on 07/31/07 requesting that he assign a Dev team member to this SCR.

Votes:

A Tech Group vote to approve version 5 of this SCR, begun 06/18/09 and ended on 06/24/09, was inconclusive: 4-3-1-1 (yes-no-abstain-no vote). A newer version of this SCR is being developed.

Node Representative Version 5
ATM no vote
EN Ron Joyner yes
GEO Susan Slavney yes
IMG Patty Garcia yes
NAIF Boris Semenov abstain
PPI Todd King1 yes
RINGS Mitch Gordon no
RS Dick Simpson no
SBN Anne Raugh no
1This vote was submitted via the web interface several hours after the Standards Telecon vote.

Due to the inconclusive results of the above vote, the vote on whether or not to send the SCR to the MC was moot.

Node Representative Version 5
GEO Susan Slavney MC vote unwarranted
PPI Todd King MC vote unwarranted
RS Dick Simpson N/A

Version 7 of the SCR was approved by the Tech Group via web vote ending on 07/29/09 by a vote of 7-0 (yes-no).

Node Representative Version 7
ATM Lyle Huber yes
EN Elizabeth D. Rye yes
GEO S. Slavney yes
IMG Patty Garcia yes
NAIF Boris Semenov yes
PPI Todd King yes
RINGS mitch yes
RS Dick Simpson yes
SBN A. Raugh yes

Via web vote ending on 07/29/09, the Tech Group voted 7-2 (MC vote unwarranted-submit to MC for vote) to recommend against an MC vote on version 7 of this SCR.

Node Representative Version 7
ATM Lyle Huber submit to MC for vote
EN Elizabeth D. Rye MC vote unwarranted
GEO S. Slavney MC vote unwarranted
IMG Patty Garcia MC vote unwarranted
NAIF Boris Semenov MC vote unwarranted
PPI Todd King MC vote unwarranted
RINGS mitch MC vote unwarranted
RS Dick Simpson MC vote unwarranted
SBN A. Raugh submit to MC for vote